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CHAMIDAE [1 record]

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Record 1 1977-07-07

English

Subject field(s)
  • Paleontology
OBS

[Bivalves of the family Chamidae have the following characteristics:] sculpture [is] normally well developed, concentric or radial or both; [the] shell [is] cemented to [the] substrate by one valve, at least temporarily; beaks [are] prosogyre ligament [is] parivincular; [the] hinge [is] degenerate in appearance, with at least one large cardinal tooth in either valve, two cardinals and weak laterals in some; muscle scars [are] two, large, subequal; [the] palleal line [is] entire. "?U.Cret., Paleoc.-Rec."

French

Domaine(s)
  • Paléontologie
OBS

[Les Lamellibranches de la famille des Chamidae ont une] coquille de forme irrégulière, fixée, ornée de lamelles concentriques, saillantes et épineuses; [des] crochets prosogyres; [un] ligament externe, situé dans une rainure ligamentaire arquée et placée en arrière des crochets; [une] charnière composée d'une dent et deux fossettes sur une valve, de deux dents et une fossette sur l'autre valve; [des] grandes impressions musculaires; [et une] ligne palléale entière. [Ce sont des] formes de mers chaudes.

Spanish

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